Beake lock



Oct. 16, 1928. l 1,688,290

C. A. SMlTH ET AL BRAKE LOCK Filed Auvg. 8, 1927 2 Sheets-Sheet 1 l1/wanton,

, @fw/Qw- Oct. 16,l 1928. 1,688,290

C. A. SMITH ET AL BRAKE LOCK Filed Aug. 8,v 1927 2 Sheets-Sheet 2 8% mgm Wrrrlgss:

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Patented ct. i6, 1928.

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unirse STATES PATENT OFFICE.

. i CHARLES A. SMIH AND WALTER G. BOWERS, 0F BARBERTON, OHIO.

BRAKE LOCK.

Applcction led .August 8, 132i?. Serial No. 211.527.

This invention relates to brakelocking means for a motor vehicle, the general object` of theinventionbeing toprovide means for holding the foot brakes of the vehicle applied, While the clutch pedal is depressed, so that there is no danger of the vehicle rolling down an incline when the gears are being shiftedL andwithout requiring the operator to keep his foot on the brake pedal so that the foot which ordinarily manipulates the brake pedal is free to manipulate the accelerator.

Another object of the invention is to so formV the parts thatl they can be easily attached to existing models of motor vehicles with but slight change thereto.

This invention also consists in certain other features of construction and the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

ln describing our invention in detail, reference will be had to the accompanying drawings wherein like ol'iaraoters denote like or Y corresponding parts throughout the several vieivs, and in Which Figure 1 is an elevation of parts of a motor vehicle, showing the invention in use.

Figure 2 is a plan view of Figure 1.

Figure 3 is a section on line 23d-3 offFigure 2.

Figure si is a plan View showing' the various parts of the invention.

Figure 5 is a 'vieu' of the Wedge member for the brake rod.

Figure 6 is a view of the caminemlier.

In these views, 1 indicates a tubular rod Which extends across the frame of the chassis of the motor and is suitably supported thereby and 2 indicates a bracket which is clamped to said rod. A plate 3 is formed with a depending aart l which is fastened to the bracket so that the plate is supported in a horisontal position yhy said bracket., rlhe inner edge of the'plate is formedfwith an upstanding Piange 5. f v

A Wedge block Gis clamped to the brake rod 7 which is attached to the brake pedal S, the rod passing through a hole 9 formed in the block and the blockfbeing clamped to thel rod by the bolts 10, lThis block is so positioned that it will engage the plate and n its flange, as shownin dotted and full lines 'brake rod by the pedal.

in Figure 4, during the movement of the A cam lever 11 is pivot'ed to the plate and a'lever 12 is also pivoted to the plate and has apin and slot connection 13 Withthe outer end of the cam lever. An eye bolt 1e is adjustably conneeted with the outer end of the lever 12 and sleeve 15 passes through the eye of the From the foregoing it will be seen that when the brake pedal is depressed to apply the foot brakes, the Wedge block 6 is moved forwardly on the plate 3 rfrom the dotted line position of Figure 4 to the full line position thereof, and then When the clutch is depressed, the rod 16 will rock the lever 12 and thus cause the cam lever to engage the small part of the Wedge block andk jam it between the cam lever and the flange 5 of the plate. Thus the brakes will be heldin applied position as the Wedge block will prevent the kbrake rod and the parts attached thereto from returning to normal position. In this Way, the foot can be removed from the brake pedal and used on the accelerator Without danger of the vehicle moving on an incline. lVhen the foot is removed from the clutch7 the parts Will return to normal position, with the cam lever out of engagement With the Wedge block so that the block is free to move under the action of the brake releasing' springs on the rod 7.

This device can be easily installed on eX- isting models of motor vehicles and it can be manufactured to sell at low cost. ltwill operate smoothly and Without noise and does not in any VWay interfere with the proper operation of the vehicle.

It `is thought from the foregoing descripvtion that the advantages and novel features of our invention will be reaoily apparent.

le desire it to be understood that We may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall Within the scope of the appended claims.

Vhat We claim is 1. In a motor vehicle, a Wedge member attached `to the brake rod which is attached to the brake pedal, a supporting member on Which the Wedge member' Slides, a cam meinber for forcing the Wedgemember against a ypart of the supporting member and means for operating the cam member by the clepression of the clutch pedal.

2. In a motor vehelefa Wedge blockatytacheel to the rod which is connected with the brake pedal7 a supportingplate having a flangey thereon on which the Wedgev member.

slides7 a cam lever pvotecl to the plate, a

leverpvoted to the plate and Connected with 1 the cam leven a rod connected with the lower end of Vthe clutch pedal and means for yieldingly connecting the rool to the outer end. of

tures.

GHAELES A. SMITH. WALTER e. BOWERS.4

Irl-testimony whereof We aiixour sgna- 20 

